Plain MCP for AI agents
Agents read Plain MCP at once. Changes and sends are held for a person's approval by default.
About Plain MCP
Read and manage Plain support threads, customers, tenants, broadcasts, help-center content, Sidekick sessions, and workspace settings through Plain's hosted MCP server.
What an agent can do in Plain MCP
Every Plain MCP action is classed by the platform as a read, a change or a send. Reads run at once. Changes and sends are held for a person by default.
Runs at once (reads)
Looks things up in Plain MCP without asking first. 23 actions.
- GetbroadcastaudiencedetailsFetch a single broadcast audience by its ID, or null if no audience with that ID exists. Returns soft-deleted audiences (where `isDeleted` is true), so the record of what a past broadcast was sent to
- GetbroadcastaudiencesFetch a paginated list of the workspace's broadcast audiences, newest first. An audience is a named, reusable set of broadcast recipients, resolved to concrete Slack channels at send time rather than
- GetbroadcastdetailsFetch a single broadcast by its ID, including its authored content and who it is targeted at. Returns null if no broadcast with that ID exists, and returns soft-deleted broadcasts (where `isDeleted` i
- GetcustomerdetailsFetch detailed information about a specific customer by their ID. Returns the customer's profile including email, avatar, assignment, company, and timestamps.
- GethelpcenterarticleFetch detailed information for a specific help-center article by ID. Help-center article URL format (Plain dashboard): https://app.plain.com/workspace/{workspaceId}/help-center/{helpCenterId}/articles
- GethelpcenterarticlebyslugFetch detailed information for a specific help-center article by slug. Help-center article URL format (Plain dashboard): https://app.plain.com/workspace/{workspaceId}/help-center/{helpCenterId}/articl
- GethelpcenterarticlegroupsFetch a paginated list of article groups for a specific help center. Use the `cursor` variable with the endCursor from the previous response's pageInfo to fetch the next page. The cursor is an opaque
- GethelpcenterarticlesFetch a paginated list of articles for a specific help center. Use the `cursor` variable with the endCursor from the previous response's pageInfo to fetch the next page. The cursor is an opaque token:
- GethelpcentersFetch a paginated list of help centers. Use the `cursor` variable with the endCursor from the previous response's pageInfo to fetch the next page. The cursor is an opaque token: pass it back unchanged
- GetlabelsFetch a paginated list of label types from Plain. Useful for fetching the label type ID's necessary for mutations like 'addLabels'. Results exclude archived labels by default. Use the `cursor` variabl
- GetmyuserGet the currently authenticated user's details. This query uses implicit authentication - no parameters are needed. Returns the user associated with the current session.
- GetmyworkspaceGet the currently authenticated user's workspace details. This query uses implicit authentication - no parameters are needed. Returns the workspace associated with the current session. The returned `i
Show all 23
- GetsidekicksessionPoll a Sidekick session: read its status, its newest messages, and any approval it is blocked on. Call this repeatedly after startSidekickSession or sendSidekickMessage. discussionId is the `thdis_...
- GetsnippetFetch a single snippet by ID, including soft-deleted snippets (where `isDeleted` is true). Use this when you already have a snippet ID (starts with `sn_`) from `getSnippets` or another tool. Do not in
- GetsnippetsFetch a paginated list of snippets from the workspace. Snippets are reusable reply templates that agents insert when composing replies. Soft-deleted snippets are excluded from this list. Use the `curs
- GettenantdetailsFetch detailed information about a specific tenant by their ID. Returns the tenant's profile including name, external ID, source, tier, and tenant fields.
- GettenantsFetch a paginated list of tenants from Plain. Results include tenant name, external ID, source, and associated tier. Use the `cursor` variable with the endCursor from the previous response's pageInfo
- GetthreaddetailsFetch complete details for a specific thread including first 50 timeline entries. Timeline entries include notes, chats, emails, status changes, assignments, and more. Use the `timelineCursor` variabl
- GetthreadfieldschemasFetch a paginated list of thread field schemas from Plain. Thread field schemas define the custom fields available for threads in your workspace. Use the `cursor` variable with the endCursor from the
- GetthreadknowledgesourcecitationsFetch the knowledge sources cited by AI agent replies on a thread. Currently only Ari, Plain's AI support agent, produces citations. Each citation is linked to the timeline entry the citing reply is r
- GetuserbyemailLook up a Plain user by their email address. Returns user details including ID, name, role, and status.
- SearchtenantsSearch for tenants by name or external ID. The search is case-insensitive: partial match on name, exact match on external ID. The search term must be at least 2 characters long. Use the `cursor` varia
- SearchthreadlinkcandidatesSearch a connected issue tracker for external entities that can be linked to a thread via `createThreadLink`. Scope the search to one issue tracker with `sourceType` (e.g. `jira_issue`, `incidentio_in
Held for approval by default (changes and sends)
Held for a person's approval by default. The approval is recorded and the action is sent once, never twice, with 10 seconds to undo. 6 actions.
- GetattachmentdownloadurlGenerate a short-lived download URL for an attachment on a thread. Use attachment IDs returned by getThreadDetails (in the attachments field of timeline entries such as NoteEntry, ChatEntry, EmailEntr
- MarkcustomerasspamFlag a customer as spam. This hides their threads from the inbox and excludes them from metrics. Marking a customer that is already marked as spam returns a `customer_already_marked_as_spam` error. Pa
- MergethreadMerge one Plain thread into another (a `MERGED_INTO` native thread link). The child thread (`childThreadId`) is merged into the parent thread (`parentThreadId`). On success the child thread is marked
- SendsidekickmessageSend a follow-up message into an existing Sidekick session. discussionId is the `thdis_...` handle returned by startSidekickSession. Use this to answer a question from Sidekick, redirect it, or give i
- StartsidekicksessionStart a new Sidekick session and return the handle used by every other Sidekick tool. Sidekick is Plain's AI agent. It runs asynchronously in a sandbox. This tool returns as soon as the session is cre
- UnmarkcustomerasspamClear the spam flag from a customer, restoring their threads to the inbox and metrics. The `markedAsSpamAt` timestamp is cleared. Pass the customer `id` (starts with `c_`) as `customerId`. Use `getCus
Changes wait in Needs you
Changes and sends in Plain MCP are held for a person's approval by default. The approval is recorded, and the action is sent once, never twice, with 10 seconds to undo.
Related connectors
Plain MCP questions
Can an agent change data in Plain MCP on its own?
Not by default. Changes and sends in Plain MCP are held for a person's approval. The approval is recorded, and the action is sent once, never twice, with 10 seconds to undo.
What can an agent read in Plain MCP?
This connector lists 23 read actions. Reads run at once, without waiting for approval.
How does Plain MCP connect?
It connects with dcr oauth. Connectors are built and maintained by third-party developers; availability is confirmed during scoping.